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onsemi NCV8187AMT110TAG
- Part No.:
- NCV8187AMT110TAG
- Manufacturer:
- onsemi
- Package:
- 6-WDFN Exposed Pad
- Datasheet:
-
NCV8187AMT110TAG.pdf
- Description:
- IC REG LINEAR 1.1V 1.2A 6WDFN
- Quantity:
- Payment:
- Shipping:
Inventory:348
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Product details
Overview
NCV8187AMT110TAG from onsemi is a 1.2 A low-dropout linear voltage regulator with fixed 1.1 V output, 30 µA quiescent current, ±2% output accuracy over temperature/load/line, 75 dB PSRR at 1 kHz, and integrated Power Good open-drain output. It serves as a primary power rail for automotive microcontrollers in infotainment systems requiring stable low-noise supply under wide input (1.5–5.5 V) and high-temperature (−40°C to +150°C) conditions.
For engineers reviewing the NCV8187AMT110TAG datasheet, pinout, applications, or equivalent options, key selection criteria include dropout voltage at 1.2 A (max 495 mV for 1.2–1.4 V output), thermal shutdown threshold (170°C), active output discharge, WDFN6 2×2 mm wettable flank–free package compatibility, and AEC-Q100 qualification for automotive use.
Technical Context
The NCV8187AMT110TAG implements a PMOS pass transistor architecture enabling ultra-low dropout and stable operation with only a 10 µF ceramic output capacitor. Its internal reference is trimmed to 0.8 V, and the fixed 1.1 V output is achieved via precision resistor feedback embedded in the die - no external ADJ pin required.
Power Good functionality uses a comparator monitoring regulated output against 92% (rising) and 80% (falling) thresholds, driving an open-drain output that requires an external 10–100 kΩ pull-up. The EN pin supports logic-level enable/disable with 0.9 V high-threshold and 0.3 V low-threshold, enabling seamless MCU-controlled power sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.1 V ±2% over −40°C to +150°C, full load and line range - ensures reliable core voltage for automotive MCUs without external feedback. |
| Max Output Current | 1.2 A continuous (1.3 A min guaranteed) - supports demanding SoC rails and multi-rail subsystems. |
| Quiescent Current | Typ. 30 µA over full temperature range - enables always-on subsystems with minimal battery drain. |
| Dropout Voltage | Max 495 mV at 1.2 A output (for 1.1 V VOUT) - allows operation down to VIN = 1.595 V, critical for cold-crank automotive scenarios. |
| PSRR | 75 dB at 1 kHz - suppresses switching noise from upstream DC-DC converters feeding the LDO input. |
| Output Noise | 15 µVRMS (10 Hz–100 kHz) - meets low-noise requirements for ADC references and RF power amplifiers. |
| Thermal Shutdown | 170°C junction temperature with 15°C hysteresis - protects against sustained overload or poor PCB heatsinking. |
Pinout & Package
NCV8187AMT110TAG is housed in a WDFN6 2×2 mm, 0.65 mm pitch, non-wettable flank (WF) package (Case 511BR), with exposed thermal pad on bottom for enhanced heat dissipation. Pin 1 is marked by a dot or beveled corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input voltage supply | Accepts 1.5–5.5 V; requires ≥1 µF ceramic decoupling to GND for stability and transient response. |
| 2 (EN) | Enable control input | Active-high logic: >0.9 V enables regulator; <0.3 V disables it and activates active output discharge. |
| 3 (GND) | Power ground | Primary return path; must be connected to low-impedance PCB ground plane and thermally tied to exposed pad. |
| 4 (PG) | Power Good open-drain output | Sinks up to 10 mA; requires external pull-up to VOUT or VIN; asserts high when VOUT ≥92% of nominal. |
| 5 (SNS) | Output voltage sense | Internally connected to regulated output; used for precision feedback - must be routed adjacent to OUT with minimal trace length. |
| 6 (OUT) | Regulated output | Delivers 1.1 V ±2%; requires 10 µF ceramic capacitor to GND for stability and low-noise performance. |
Key Features
| Feature | Design Value |
|---|---|
| Low IQ Operation | 30 µA typical across −40°C to +150°C - extends battery life in always-on vehicle modules (e.g., telematics, gateway ECUs). |
| Active Output Discharge | 120 Ω typical resistance when disabled - rapidly discharges output capacitance to prevent hold-up voltage and ensure clean power-down sequencing. |
| Soft-Start | Internal 1.2 ms ramp time - limits inrush current during startup, preventing input rail collapse and overshoot on sensitive loads. |
| AEC-Q100 Qualified | Grade 1 (−40°C to +125°C ambient) and PPAP-capable - certified for safety-critical automotive applications including instrument clusters and ADAS sensors. |
| Stability with Small Capacitors | Guaranteed stable with ≥4.7 µF X5R/X7R ceramic output cap - reduces BOM count and PCB area vs. traditional LDOs requiring high-ESR tantalum. |
Applications
| Infotainment Processor Core Supply | Automotive Camera Module Bias Rail |
|---|---|
Use Scenario: Powers ARM Cortex-A series application processors in head-unit infotainment systems with dynamic load steps up to 1 A. IC Role / Device Role / Timing Role: Primary low-noise core LDO delivering stable 1.1 V at up to 1.2 A, synchronized to MCU enable signals via EN pin. Use Value: 15 µVRMS noise and 75 dB PSRR prevent digital switching artifacts from corrupting audio DAC outputs and display timing controllers. | Use Scenario: Supplies image sensor analog front-end and ISP core in rear-view or surround-view camera modules. IC Role / Device Role / Timing Role: Fixed-output LDO providing precise 1.1 V bias under cold-crank (VIN = 1.5 V) and high-temp (TJ = 150°C) conditions. Use Value: 495 mV max dropout at 1.2 A ensures uninterrupted operation during engine start, while ±2% accuracy maintains sensor ADC linearity. |
| Telematics Gateway Subsystem Rail | ADAS Radar Signal Chain Reference |
Use Scenario: Generates isolated 1.1 V rail for LTE/C-V2X modem baseband ICs in vehicle-to-everything (V2X) gateways. IC Role / Device Role / Timing Role: Secondary LDO fed from main 3.3 V domain, controlled by gateway MCU via EN and monitored via PG signal. Use Value: Power Good output enables firmware-level health checking and graceful failover before modem reset, improving cellular connection reliability. | Use Scenario: Provides ultra-low-noise 1.1 V supply to radar transceiver RF synthesizer and high-speed ADC clock buffers. IC Role / Device Role / Timing Role: Low-phase-noise bias source where regulator-induced jitter directly impacts radar range resolution. Use Value: 15 µVRMS broadband noise and 75 dB PSRR minimize supply-induced phase noise, preserving <1° angular accuracy in 77 GHz radar beams. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| NCV8187AMT120TAG | Fixed 1.2 V output; identical package, specs, and features except output voltage. | Used where system SoC requires 1.2 V core voltage instead of 1.1 V - no change to layout or thermal design. | Select when target load's nominal core voltage is 1.2 V; same footprint and qualification level. |
| TLV73311PDBVR | 1.1 V fixed, 300 mA max, SOT-23-5 package, 25 µA IQ, but not AEC-Q100 qualified. | Limited to non-automotive industrial or consumer applications due to lack of automotive qualification and lower current capability. | Only suitable for cost-sensitive, non-automotive designs where 300 mA suffices and AEC-Q100 is not required. |
Compared with NCV8187AMT110TAG, the 1.2 V variant offers identical automotive-grade performance at a different voltage point, while TLV73311PDBVR trades current capacity and qualification for smaller size and marginally lower IQ - making it unsuitable for automotive 1.2 A loads.
Availability
NCV8187AMT110TAG is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and telematics gateway applications requiring stable component supply, AEC-Q100 compliance, and long-term production continuity.
Supply support for NCV8187AMT110TAG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
onsemi (formerly ON Semiconductor) is a global semiconductor supplier focused on energy-efficient electronics for automotive, industrial, cloud, medical, and IoT applications.
The NCV8187AMT110TAG belongs to onsemi's NCV automotive-grade LDO family, engineered specifically for high-reliability vehicle subsystems requiring low noise, ultra-low IQ, and robust thermal protection under harsh operating conditions.
FAQ
What is the maximum input voltage rating for the NCV8187AMT110TAG?
The NCV8187AMT110TAG has an absolute maximum input voltage of 6 V, with recommended operating range from 1.5 V to 5.5 V. Exceeding 6 V may cause permanent damage. This rating applies across all temperatures and is validated per onsemi's Absolute Maximum Ratings table - critical for automotive cold-crank and load-dump transient immunity design.
Does the NCV8187AMT110TAG require an external resistor divider for its 1.1 V output?
No, the NCV8187AMT110TAG is a fixed-output variant with internal feedback network set to 1.1 V; no external resistors are needed. The SNS pin is internally connected to OUT and must be routed with minimal trace length. External dividers are only required for adjustable versions like NCV8187AMTWADJTAG.
How does the Power Good (PG) output behave when the NCV8187AMT110TAG is disabled via the EN pin?
When EN is driven low, the NCV8187AMT110TAG disables regulation and the internal PG transistor opens, leaving the PG pin floating. Its logic level is then defined solely by the external pull-up voltage. To maintain valid sequencing, connect the pull-up to VOUT so PG goes low when the output collapses - ensuring downstream logic detects true power loss.
Is the NCV8187AMT110TAG compatible with standard reflow soldering profiles?
Yes, the NCV8187AMT110TAG in WDFN6 2×2 mm package is rated for standard Pb-free reflow per JEDEC J-STD-020. Peak temperature must not exceed 260°C, and the device is RoHS-compliant with halogen-free/BFR-free construction - verified in onsemi's packaging documentation for Case 511BR.
What thermal derating applies to the NCV8187AMT110TAG at 105°C ambient temperature?
Using RJA = 51°C/W (WDFN6), the maximum allowable power dissipation at TA = 105°C is ~0.88 W before reaching TJ(MAX) = 150°C. For a 1.1 V output at 1.2 A (VIN = 3.3 V), PD = (3.3 − 1.1) × 1.2 = 2.64 W - requiring significant PCB copper area or forced air cooling to stay within safe operating area.
NCV8187AMT110TAG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- onsemi
- Series:
- -
- Package/Case:
- 6-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.1V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- -
- Current - Output:
- 1.2A
- Current - Quiescent (Iq):
- 45 µA
- Current - Supply (Max):
- -
- PSRR:
- 75dB (1kHz)
- Control Features:
- Enable, Power Good, Soft Start
- Protection Features:
- Over Current, Over Temperature
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-WDFN (2x2)
NCV8187AMT110TAG FAQ
1.How can I place an order for NCV8187AMT110TAG through Aetrix?
Please submit a Request for Quotation (RFQ) for NCV8187AMT110TAG on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for NCV8187AMT110TAG reliable?
The price and inventory of NCV8187AMT110TAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for NCV8187AMT110TAG is usually 5 days.
3.What payment methods are accepted for NCV8187AMT110TAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for NCV8187AMT110TAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for NCV8187AMT110TAG?
NCV8187AMT110TAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your NCV8187AMT110TAG order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for NCV8187AMT110TAG?
For technical support, including NCV8187AMT110TAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your NCV8187AMT110TAG requirements.
6.How does Aetrix verify that NCV8187AMT110TAG is sourced from the original manufacturer or authorized distributors?
All NCV8187AMT110TAG products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that NCV8187AMT110TAG meets industry standards.
7.What is the process for return or replacement of NCV8187AMT110TAG?
All NCV8187AMT110TAG units undergo pre-shipment inspection (PSI). If there is an issue with NCV8187AMT110TAG, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The NCV8187AMT110TAG part is unused and in its original packaging.
Return procedure for NCV8187AMT110TAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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